gitblit/src/com/gitblit/wicket/pages/BlobPage.java

package com.gitblit.wicket.pages;

import java.util.HashMap;
import java.util.Map;

import org.apache.wicket.Component;
import org.apache.wicket.PageParameters;
import org.apache.wicket.markup.html.basic.Label;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;

import com.gitblit.StoredSettings;
import com.gitblit.utils.JGitUtils;
import com.gitblit.wicket.LinkPanel;
import com.gitblit.wicket.RepositoryPage;
import com.gitblit.wicket.WicketUtils;
import com.gitblit.wicket.panels.PathBreadcrumbsPanel;


public class BlobPage extends RepositoryPage {

	public BlobPage(PageParameters params) {
		super(params, "blob");

		final String blobPath = params.getString("f", null);

		Repository r = getRepository();
		RevCommit commit = JGitUtils.getCommit(r, commitId);

		// blob page links
		add(new Label("historyLink", "history"));
		add(new Label("rawLink", "raw"));
		add(new Label("headLink", "HEAD"));

		add(new LinkPanel("shortlog", "title", commit.getShortMessage(), CommitPage.class, newCommitParameter()));

		add(new PathBreadcrumbsPanel("breadcrumbs", repositoryName, blobPath, commitId));
		String extension = null;
		if (blobPath.lastIndexOf('.') > -1) {
			extension = blobPath.substring(blobPath.lastIndexOf('.') + 1);
		}

		// Map the extensions to types
		Map<String, Integer> map = new HashMap<String, Integer>();
		for (String ext : StoredSettings.getStrings("prettyPrintExtensions")) {
			map.put(ext.toLowerCase(), 1);
		}
		for (String ext : StoredSettings.getStrings("imageExtensions")) {
			map.put(ext.toLowerCase(), 2);
		}
		for (String ext : StoredSettings.getStrings("binaryExtensions")) {
			map.put(ext.toLowerCase(), 3);
		}

		if (extension != null) {
			int type = 0;
			if (map.containsKey(extension)) {
				type = map.get(extension);
			}
			Component c = null;
			switch (type) {
			case 1:
				// PrettyPrint blob text
				c = new Label("blobText", JGitUtils.getRawContentAsString(r, commit, blobPath));
				WicketUtils.setCssClass(c, "prettyprint");
				break;
			case 2:
				// TODO image blobs
				c = new Label("blobText", "Image File");
				break;
			case 3:
				// TODO binary blobs
				c = new Label("blobText", "Binary File");
				break;
			default:
				// plain text
				c = new Label("blobText", JGitUtils.getRawContentAsString(r, commit, blobPath));
				WicketUtils.setCssClass(c, "plainprint");
			}
			add(c);
		} else {
			// plain text
			Label blobLabel = new Label("blobText", JGitUtils.getRawContentAsString(r, commit, blobPath));
			WicketUtils.setCssClass(blobLabel, "plainprint");
			add(blobLabel);
		}

		// close repository
		r.close();

		// footer
		addFooter();
	}
}